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downward social mobility
释义
社会学词汇手册
downward social mobility
下降社会流动
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Hough function
Hounan
hound
hounds-tooth check
hour
hour
hour
hour angle
hour angle
hour-angle axis
hour-angle coordinate system
hour-angle difference
hour circle
hour circle
hour cost
hour glass
hourglass
hourglass
hourglass
hourglass drum
hourglass drum
Hourglass Nebula
hourglass perforation
hourglass style
hour index
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